Illuminated sign



FIG. 1 is a front perspective view of an illuminated sign showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a side elevation view thereof;

FIG. 4 is a plan view thereof; and,

FIG. 5 is a view from below thereof. 

The ornamental design for an illuminated sign, as shown and described. 